Intellij content is not allowed in prolog

IntelliJ 실행 시 아래와 같은 에러가 나는 경우가 있다.

Error:Internal error: (org.jdom.input.JDOMParseException) Error on line 1: 프롤로그에서는 콘텐츠가 허용되지 않습니다. org.jdom.input.JDOMParseException: Error on line 1: 프롤로그에서는 콘텐츠가 허용되지 않습니다.     at org.jdom.input.SAXBuilder.build(SAXBuilder.java:533)     at org.jdom.input.SAXBuilder.build(SAXBuilder.java:946) Colored by Color Scripter

cs

여러 가지 원인이 있겠지만, 이번 경우는 프로젝트 디렉토리에 있는 workspace.xml 파일이 잘못되어 발생했다. 실제로 파일을 열어 보니 NULL 문자만 잔뜩 들어가 있었다. 해당 파일을 수정 후 재기동 하니 정상 동작한다.

아래는 에러 전문이다.

Error:Internal error: (org.jdom.input.JDOMParseException) Error on line 1: 프롤로그에서는 콘텐츠가 허용되지 않습니다. org.jdom.input.JDOMParseException: Error on line 1: 프롤로그에서는 콘텐츠가 허용되지 않습니다.     at org.jdom.input.SAXBuilder.build(SAXBuilder.java:533)     at org.jdom.input.SAXBuilder.build(SAXBuilder.java:946)     at com.intellij.openapi.util.JDOMUtil.loadDocument(JDOMUtil.java:364)     at com.intellij.openapi.util.JDOMUtil.loadDocument(JDOMUtil.java:342)     at org.jetbrains.jps.model.serialization.JpsLoaderBase.loadRootElement(JpsLoaderBase.java:69)     at org.jetbrains.jps.model.serialization.JpsLoaderBase.loadRootElement(JpsLoaderBase.java:40)     at org.jetbrains.jps.model.serialization.JpsLoaderBase.loadComponents(JpsLoaderBase.java:52)     at org.jetbrains.jps.model.serialization.JpsProjectLoader.a(JpsProjectLoader.java:119)     at org.jetbrains.jps.model.serialization.JpsProjectLoader.loadProject(JpsProjectLoader.java:98)     at org.jetbrains.jps.model.serialization.impl.JpsSerializationManagerImpl.loadModel(JpsSerializationManagerImpl.java:41)     at org.jetbrains.jps.cmdline.JpsModelLoaderImpl.loadModel(JpsModelLoaderImpl.java:45)     at org.jetbrains.jps.cmdline.BuildRunner.load(BuildRunner.java:71)     at org.jetbrains.jps.cmdline.BuildSession.runBuild(BuildSession.java:198)     at org.jetbrains.jps.cmdline.BuildSession.run(BuildSession.java:113)     at org.jetbrains.jps.cmdline.BuildMain$MyMessageHandler$1.run(BuildMain.java:133)     at org.jetbrains.jps.service.impl.SharedThreadPoolImpl$1.run(SharedThreadPoolImpl.java:41)     at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)     at java.util.concurrent.FutureTask.run(FutureTask.java:262)     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)     at java.lang.Thread.run(Thread.java:744) Caused by: org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 1; 프롤로그에서는 콘텐츠가 허용되지 않습니다.     at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:198)     at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.fatalError(ErrorHandlerWrapper.java:177)     at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:441)     at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:368)     at com.sun.org.apache.xerces.internal.impl.XMLScanner.reportFatalError(XMLScanner.java:1436)     at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(XMLDocumentScannerImpl.java:999)     at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:606)     at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:117)     at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:510)     at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:848)     at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:777)     at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141)     at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1213)     at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:649)     at org.jdom.input.SAXBuilder.build(SAXBuilder.java:518)     … 20 more Caused by: org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 1; 프롤로그에서는 콘텐츠가 허용되지 않습니다.     at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:198)     at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.fatalError(ErrorHandlerWrapper.java:177)     at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:441)     at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:368)     at com.sun.org.apache.xerces.internal.impl.XMLScanner.reportFatalError(XMLScanner.java:1436)     at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(XMLDocumentScannerImpl.java:999)     at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:606)     at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:117)     at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:510)     at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:848)     at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:777)     at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141)     at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1213)     at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:649)     at org.jdom.input.SAXBuilder.build(SAXBuilder.java:518)     at org.jdom.input.SAXBuilder.build(SAXBuilder.java:946)     at com.intellij.openapi.util.JDOMUtil.loadDocument(JDOMUtil.java:364)     at com.intellij.openapi.util.JDOMUtil.loadDocument(JDOMUtil.java:342)     at org.jetbrains.jps.model.serialization.JpsLoaderBase.loadRootElement(JpsLoaderBase.java:69)     at org.jetbrains.jps.model.serialization.JpsLoaderBase.loadRootElement(JpsLoaderBase.java:40)     at org.jetbrains.jps.model.serialization.JpsLoaderBase.loadComponents(JpsLoaderBase.java:52)     at org.jetbrains.jps.model.serialization.JpsProjectLoader.a(JpsProjectLoader.java:119)     at org.jetbrains.jps.model.serialization.JpsProjectLoader.loadProject(JpsProjectLoader.java:98)     at org.jetbrains.jps.model.serialization.impl.JpsSerializationManagerImpl.loadModel(JpsSerializationManagerImpl.java:41)     at org.jetbrains.jps.cmdline.JpsModelLoaderImpl.loadModel(JpsModelLoaderImpl.java:45)     at org.jetbrains.jps.cmdline.BuildRunner.load(BuildRunner.java:71)     at org.jetbrains.jps.cmdline.BuildSession.runBuild(BuildSession.java:198)     at org.jetbrains.jps.cmdline.BuildSession.run(BuildSession.java:113)     at org.jetbrains.jps.cmdline.BuildMain$MyMessageHandler$1.run(BuildMain.java:133)     at org.jetbrains.jps.service.impl.SharedThreadPoolImpl$1.run(SharedThreadPoolImpl.java:41)     at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)     at java.util.concurrent.FutureTask.run(FutureTask.java:262)     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)     at java.lang.Thread.run(Thread.java:744) Colored by Color Scripter

cs